Finding the Fourth Proportional to 206,658.34, 285,115.14 and 135,079.66
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Solution
The fourth proportional to 206,658.34, 285,115.14 and 135,079.66 is: 186,361.97
Step by Step Solution
- Step 1: Write the proportion equation
206,658.34 : 285,115.14 = 135,079.66 : x - Step 2: Convert to fraction form
206,658.34/285,115.14 = 135,079.66/x - Step 3: Cross multiply
206,658.34x = 285,115.14 × 135,079.66 - Step 4: Simplify right side
206,658.34x = 38,513,256,172.05 - Step 5: Solve for x
x = 38,513,256,172.05/206,658.34 - Step 6: Final answer
x = 186,361.97
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.